Alexhangman,
Since 1956, all Celestion chassis drivers have been stamped with a date code (two numbers and two letters), denoting exact date of manufacture. The codes are added on the production line and are stamped on the speaker’s chassis leg, on the front gasket or for later speakers, printed onto an id label stuck onto the magnet’s edge.
1956 – 1962
Date codes from 1956 to 1962 are written in the form: Day/Month/Year. For example: 15DE = 15th April1960.
Year Code Month Code
1956 A January A
1957 B February B
1958 C March C
1959 D April D
1960 E May E
1961 F June F
1962 G July G
August H
September I
October J
November K
December L
Note loss of ‘I’ from the month codes. Date codes from 1963 to 1967 are written in the form: Day/Month/Year. E.g.: 19MK = 19th December 1965
Year Code Month Code
1963 H January A
1964 J February B
1965 K March C
1966 L April D
1967 M May E
June F
July G
August H
September J
October K
November L
December M
1968 – 1991
Date codes from 1968 to 1991 are written in the form: Month/Year/Day. For example: KH7 = 7th October 1975
Year Code Month Code
1968 A January A
1969 B February B
1970 C March C
1971 D April D
1972 E May E
1973 F June F
1974 G July G
1975 H August H
1976 J September J
1977 K October K
1978 L November L
1979 M December M
1980 N
1981 P
1982 Q
1983 R
1984 S
1985 T
1986 U
1987 V
1988 W
1989 X
1990 Y
1991 Z
1992 – 2014
Date codes from 1992 to 2014 are written in the form: Day/Month/Year. For example: 29EJ = 29th May 1999
Year Code Month Code
1992 B January A
1993 C February B
1994 D March C
1995 E April D
1996 F May E
1997 G June F
1998 H July G
1999 J August H
2000 K September J
2001 L October K
2002 M November L
2003 N December M
2004 P
2005 Q
2006 R
2007 S
2008 T
2009 U
2010 V
2011 W
2012 X
2013 Y
2014 Z
2015 onwards
Date codes from 2015 are written in the form: Month/Year/Day. E.g.: JA21 = 21st September 2015
Year Code Month Code
2015 A January A
2016 B February B
2017 C March C
2018 D April D
2019 E May E
2020 F June F
2021 G July G
2022 H August H
2023 TBC September J
2024 TBC October K
2025 TBC November L
2026 TBC December M
*(на фото 18GN - июль2003г)
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